Não informado. (1970). Journal of Traffic Safety Education. California Driver Education Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Traffic Safety Education. Long Beach, Calif: California Driver Education Association, 1970.
Lua MLA (8ú heag.)Não informado. Journal of Traffic Safety Education. California Driver Education Association, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.